Ternary Alloyed Ba-Cd-S Nanocrystals: Synthesis, Bandgap Tuning, and Photovoltaic Performance

Cu-mediated broadening of the absorption band of quaternary Cu–Ag–In–S/CdSe type-II core/shell quantum dot-sensitized solar cells with an efficiency of 12.51% under 0.25 sun

“…As described in our previous works, 30,46,47 the TiO 2 photoanode was composed of a three-layer structure on top of the uorine-doped tin oxide glass (FTO, 7 U per square, Ruilong): a blocking layer 48 (z70 nm thick), a mesoporous TiO 2 layer (mp-TiO 2 , approximately z10-12 mm thick, particle size z 30 nm), and a TiO 2 scattering layer 48 (z5 mm thick, particle size z 300-400 nm). In brief, the FTO glass was initially cleaned using acetone, methanol, and DI water, each sequentially for 3 min, utilizing an ultrasonic cleaner.…”

“…Cu-Ag-In-S QDs were synthesized through a two-stage successive ionic layer adsorption and reaction (SILAR) method, as described in the previous reports. 30,46,50 Firstly, Cu/Ag-S seeds were grown on the TiO 2 electrode, followed by a layer of In-S seeds on top of the Cu/Ag-S seeds. Subsequent annealing transformed the Cu/Ag-S/In-S structure into the quaternary Cu-Ag-In-S phase.…”

AgInS2/CdSe type-II core/shell quantum dot-sensitized solar cells with an efficiency of 11.75% under 0.1 sun

“…44 2.3 Preparation of AgInS 2 core QDs AgInS 2 QDs were grown onto an mp-TiO 2 electrode using a twostage successive ionic layer adsorption and reaction (SILAR) method. [45][46][47][48] First, binary Ag-S QDs seeds were grown onto an mp-TiO 2 electrode. Second, binary In-S QD seeds were deposited on the Ag-S QD seeds.…”

Highly Efficient CdSe Quantum Dot-Sensitized Solar Cells via a Facile SILAR Method: Dependence of the SILAR Cycles on Optical Properties and Photovoltaic Performance

“…The photoelectrode, outlined in our earlier publications [15][16][17], comprised a TiO 2 structure on an FTO glass substrate organized into three layers. Initially, a TiO 2 blocking layer was created by spin-coating 50 μl of a 0.247 M titanium tetraisopropoxide (TTIP) solution onto a pre-cleaned FTO glass surface.…”

“…The CuS counter electrode was fabricated using the chemical bath deposition (CBD) method [18]. The polysulfide electrolyte [15,16] was applied between the CdSe photoelectrode and the CuS counter electrode prior to performing photocurrent-voltage (J-V) measurements. The analyses comprised Xray diffractometer (XRD) assessment, UV−Vis spectrophotometer measurements for optical spectra, and J-V tests, following the methodology detailed in our earlier reports [15,16].…”